I've had a chance to put U3 through its paces, and the spell check is the only problem so far.
From my amateur perspective, it seems that the abispell is partially installed. There are some files, but not others. I had to do a full installation of Aspell-En-v02-beta.xap, but with no other accompanying dependencies, and all is well.
I really like the new icons in ROX and I'm glad to have PuTTy.
I haven't found any bugs other than the standard madplayer bug. If, for instance, you're running the command in terminal: "madplay -z /SD/SD_1/mp3/*" you get a skip or pause in the playback when doing other stuff, even switching windows, unless you first run Media Player and then shut Media Player down. Once that's down, running madplay in terminal works without complaint.
The revamped bon echo loads faster, Contacts now works, and I thank you yet again for a phenomenal OS. I use this machine exclusively when out of the house.
Jake